Track signal



Patented July 10, 1923.

erts

E t? l LEROY S. SNELL, OF TICA, NEW YORK.

TRACK SIGNAL.

Application led .Tune 14, 1921.

To all whom t may concern.' v

Beit known that I, LEROY S. SNELL, a citizen of the United States,residing at Utica, in the county of Oneida and State of New York, haveinvented certain new and useful Improvements in a Track Signal; and l dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

The invention relates to signals designed for use on railways to warnthe engineer or other train operator of impending danger f when theusual signal is not heeded because of fog or other cause.

@ther objects and advantages will be apparent and suggest themselves asthe nature of the invention is understood.

While the drawing illustrates an emb0diment of the invention it is to beunderstood that in adapting the same to meet different conditions andrequirements, various changes in the form, proportion and minor detailsof construction may be resorted to without departing from the nature ofthe invention.

Figure 1 is a side view of the mechanical operating parts of myinvention, the casing or housing therefor being shown in section,

Figure 2 is a view showing the electric circuit employed, the mechanicalparts of the device being diagrammatically shown.

The operating parts of the mechanism are enclosed for protection againstthe elements and to prevent tampering therewith. The casing or boX forreceiving the working parts is designated by the numeral 1 and isprovided in a side with an opening2 through which a bar 3 is adapted topass when it is required to place a torpedo 4 upon a rail 5 of thetrack. The bar 3 has a portion toothed as indicated at 6 to mesh withthe teeth of the gear wheel 7. Posts or guides 8 and 9 slidably supportthe bar 3. The gear wheel 7 is fast to a shaft 10 journaled to theuprights 11 or like supporting means. A

pulley 12 secured to the shaft 10 ris belted or otherwise connected to amotor 13 whereby the shaft 10 may be positively rotated forwardly orbackwardly to advance or withdraw the bar 3. In the preferableconstruction, the motor 13 is of the electric type and of suchconstruction as to be reversed. A belt 141 connects the pulley 12 with acom Serial N0. 477,435.

panion pulley 15 secured to the armature or shaft of the motor 13. Themotor 13 is included in an electric circuit which is adapted to becontrolled from adeterminate point. Two push buttons 16 and 17 areprovided at the point of control. When the circuit through the motor 13is closed by pressing the button 16 the motor is operated to advance thebar 3 whereby the torpedo e is placed upon the rail 5. When the circuitis closed by pressing the button 17 the motor 13 is reversed therebywithdrawing the bar 3 and the torpedo carried thereby rovided the samehas not been exploded. ligamps 18 and 19 are included in the circuit,the lampl 18 being red and indicating danger and the lamp 19 green todesignate caution.

The bar 3 is provided with a pin or stop 22 which is adapted tocooperate with contacts 20 and 21 applied tothe respective posts 8 and9.

As herein before stated, the motor 13 is reversible. The letter Brepresents a battery or source of electric supply. A wire 23 connectsthe plus pole of the battery with one terminal of the motor 13 and awire 25 connects the other terminal of the motor 13 with the switch 16.Wires 31 and 26 conneet contacts of the two switches 16 and 17 with theminus pole of the battery B. When the switch 16 is closed, the circuitthrough the motor for advancing the rod 3 is as follows: From thepositive pole of the battery B through wire 23, motor 13, wire 25,switch 16 and wires 31 and 26 to the minus pole of the battery B. Whenthe bar 3 reaches a position to place the torpedo t upon a rail 5 of thetrack, the lighting circuit to the lamp 18 is as follows: From thepositive pole of battery B through wiresi 23, 27 and 28, switch 22 21,wire 29, lamp 18 and wires 31 and 26 to the minus pole of the battery B.When the switch 17 is closed to reverse the motor 13 and return the bar3 to normal position, the circuit is as follows: from the posit-ive poleof battery B through wire 23, motor 13, wire 30, switch 17 and wires 31and 26 to the minus pole of the battery B. When the bar 3 reaches itsnormal position, the circuit including the lamp 19 is closed by theswitch 22 and 20, the circuit starting from the plus pole of the batteryB being as follows: Wires 23, 27 and 28, switch 22-20, wire 32, lamp 19and wires 31 and 26 to minus pole of battery B.

Having thus described the invention, what l claim is l. A tracksignalling mechanism includ ing a` torpedo-carrying bar, uprights onwhich said bar is slidable, a pin extending` laterally from the bar anddis Josed intermediate said uprights, said pin adapted to engage theuprights to liinit movement of the bar in opposite directions, signalsin electric circuits having spaced contacts on said bars and adapted tobe engaged by said pin to cl said circuits.

2. A track signalling' mechanism including'a casing, uprights within thecasing and in spaced relation, a torpedo carrying' bar slidably mountedby said uprights, said bar being,` normally disposed within the casing,the casing having an opening' through Which the bar may slide, said barhaving gear teeth, a gear Wheel in mesh with said teeth, means Withinthe casing journaling said wheel, reversible niotor operable to slidesaid torpedo carrying; bars in opposite directions and located Withinthe casing, a pin extending laterally troni the bar and disposedintermediate said uprights, said pin adapted te engage the uprights toliinit increment of the bar in opposite directions, signals in electriccircuits having spaced contacts disposed on said bars and adapted to beengaged hy said pin te close said circuits. i

ln testimony whereof l alifi ymy signature in presence of two Witnesses.

LER-OY S. SNELL. l'Vitnesses CARL LEON 0. BnnoNnn, R. OLAUN EY.

